I took my wife to the grocery store this morning in my car as I needed to fill it up. I was vaping some RY4 I made a couple of weeks ago and she said that smells like carmel corn. I said it does have a caramel sort of flavor to it. later in the day I asked her since I started vaping nothing has smelled offensive to you? She said no. When I was smoking it was always offensive smelling? She said yes. She has never smoked. Happy wife= happy life.